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BOSTON MARATHON 2023

Kassiani Nacopoulos

Bib: 27215•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:11/mi
31:37
↑ 97↓ 3451.5%
10K· 6.21 mi
9:26/mi
1:00:54
↑ 79↓ 1380.4%
15K· 9.32 mi
9:26/mi
1:30:13
↑ 67↓ 78
20K· 12.43 mi
9:48/mi
2:00:40
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
2:07:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:56/mi
2:31:07
↑ 66↓ 880.2%
30K· 18.64 mi
10:29/mi
3:03:42
↑ 181↓ 1480.2%
20M
10:46/mi
3:18:20
↑ 64↓ 500.2%
21M
11:36/mi
3:29:56
↑ 106↓ 241.6%
35K· 21.75 mi
10:26/mi
3:37:44
↑ 17↓ 861.7%
23M
11:23/mi
3:51:59
↑ 23↓ 630.6%
24M
11:18/mi
4:03:17
↓ 821.3%
40K· 24.85 mi
11:25/mi
4:13:03
↓ 200.3%
25.2M
11:10/mi
4:16:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:31/mi
4:26:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:02
Pace9:41 /mi
2nd Half
Distance13.11 mi
Time2:19:34
Pace10:39 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1031:3710:1131:37
10:11
-
10K
6.21 mi12:18:271:00:549:4829:17
9:26
-0:45
15K
9.32 mi12:47:461:30:139:4129:19
9:26
0:00
20K
12.43 mi13:18:132:00:409:4330:27
9:48
+0:22
Half
13.11 mi13:24:352:07:029:416:22
9:20
-0:28
25K
15.53 mi13:48:402:31:079:4424:05
9:56
+0:36
30K
18.64 mi14:21:153:03:429:5132:35
10:29
+0:33
20M
20.00 mi14:35:533:18:209:5514:38
10:46
+0:17
21M
21.00 mi14:47:293:29:5610:0011:36
11:36
+0:50
35K
21.75 mi14:55:173:37:4410:017:48
10:26
-1:10
23M
23.00 mi15:09:323:51:5910:0514:15
11:23
+0:57
24M
24.00 mi15:20:504:03:1710:0811:18
11:18
-0:05
40K
24.85 mi15:30:364:13:0310:119:46
11:25
+0:07
25.2M
25.20 mi15:34:274:16:5410:123:51
11:10
-0:15
Finish
26.22 mi15:44:094:26:3610:119:42
9:31
-1:39

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:20 /mi

Average Pace

10:11 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:12

48% of race

Time at Steady Pace

1:26:38

32% of race

Time at Slower Pace

50:46

19% of race

Average Pace: 10:10 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:49:1031:3710:1131:37
10:11
#23892
10K
6.21 mi12:18:271:00:549:4829:17
9:26
#23171
15K
9.32 mi12:47:461:30:139:4129:19
9:26
#22821
20K
12.43 mi13:18:132:00:409:4330:27
9:48
#22696
Half
13.11 mi13:24:352:07:029:416:22
9:20
#22656
25K
15.53 mi13:48:402:31:079:4424:05
9:56
#22544
30K
18.64 mi14:21:153:03:429:5132:35
10:29
#22456
20M
20.00 mi14:35:533:18:209:5514:38
10:46
#22438
21M
21.00 mi14:47:293:29:5610:0011:36
11:36
#22411
35K
21.75 mi14:55:173:37:4410:017:48
10:26
#22410
23M
23.00 mi15:09:323:51:5910:0514:15
11:23
#22455
24M
24.00 mi15:20:504:03:1710:0811:18
11:18
#22507
40K
24.85 mi15:30:364:13:0310:119:46
11:25
#22526
25.2M
25.20 mi15:34:274:16:5410:123:51
11:10
#22503
Finish
26.22 mi15:44:094:26:3610:119:42
9:31
#22435
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi238929831983122075(Top 83%)8831(Top 77%)8831(Top 181%)
10K6.21 mi3.10 mi23171+7219453+3789453+37822294(Top 84%)8978(Top 79%)8978(Top 184%)
15K9.32 mi3.11 mi22821+3509247+2069247+20622075(Top 83%)8831(Top 77%)8831(Top 181%)
20K12.43 mi3.11 mi22696+1259189+589189+5822413(Top 84%)9030(Top 79%)9030(Top 185%)
Half13.11 mi0.68 mi22656+409168+219168+2121660(Top 81%)8612(Top 75%)8612(Top 176%)
25K15.53 mi2.42 mi22544+1129130+389130+3822076(Top 83%)8879(Top 78%)8879(Top 182%)
30K18.64 mi3.11 mi22456+889093+379093+3722189(Top 83%)9005(Top 79%)9005(Top 184%)
20M20.00 mi1.36 mi22438+189099-69099-622291(Top 84%)9134(Top 80%)9134(Top 187%)
21M21.00 mi1.00 mi22411+279096+39096+322063(Top 83%)9031(Top 79%)9031(Top 185%)
35K21.75 mi0.75 mi22410+19097-19097-122246(Top 84%)9187(Top 80%)9187(Top 188%)
23M23.00 mi1.25 mi22455-459129-329129-3223038(Top 87%)9610(Top 84%)9610(Top 197%)
24M24.00 mi1.00 mi22507-529165-369165-3623588(Top 89%)9936(Top 87%)9936(Top 203%)
40K24.85 mi0.85 mi22526-199183-189183-1823097(Top 87%)9715(Top 85%)9715(Top 199%)
25.2M25.20 mi0.35 mi22503+239177+69177+620873(Top 78%)8525(Top 75%)8525(Top 175%)
Finish26.22 mi1.02 mi22435+689146+319146+3120220(Top 76%)8137(Top 71%)8137(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22075

Females

8831

F18-39

8831

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

22294

Females

8978

F18-39

8978

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22075

Females

8831

F18-39

8831

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22413

Females

9030

F18-39

9030

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21660

Females

8612

F18-39

8612

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

22076

Females

8879

F18-39

8879

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22189

Females

9005

F18-39

9005

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22291

Females

9134

F18-39

9134

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

22063

Females

9031

F18-39

9031

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22246

Females

9187

F18-39

9187

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23038

Females

9610

F18-39

9610

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23588

Females

9936

F18-39

9936

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23097

Females

9715

F18-39

9715

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20873

Females

8525

F18-39

8525

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

20220

Females

8137

F18-39

8137

Passing Analysis

Category:
Athletes Passed
2047
Passed By
590
Net Change
+1457
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23892
5K → 10K75332+721#23892#23171
10K → 15K37929+350#23171#22821
15K → 20K20580+125#22821#22696
20K → Half433+40#22696#22656
Half → 25K15442+112#22656#22544
25K → 30K15668+88#22544#22456
30K → 20M6951+18#22456#22438
20M → 21M7144+27#22438#22411
21M → 35K2928+1#22411#22410
35K → 23M4489-45#22410#22455
23M → 24M1971-52#22455#22507
24M → 40K1938-19#22507#22526
40K → 25.2M274+23#22526#22503
25.2M → Finish7911+68#22503#22435
TOTALS2047590+1457
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing